1. Safflor yellow A protects vascular endothelial cells from ox-LDL-mediated damage
- Author
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Hu Zhang, Jun Liu, Li-Juan Fan, Ming Li, You-Li Zhou, Jia-Qi Zhu, and Ting-Ting Tan
- Subjects
0301 basic medicine ,Apoptosis ,Pharmacology ,Biochemistry ,Nitric oxide ,Superoxide dismutase ,03 medical and health sciences ,chemistry.chemical_compound ,Chalcone ,0302 clinical medicine ,Western blot ,Human Umbilical Vein Endothelial Cells ,medicine ,Humans ,Viability assay ,Molecular Biology ,chemistry.chemical_classification ,Reactive oxygen species ,biology ,medicine.diagnostic_test ,Chemistry ,Cell growth ,Quinones ,AMPK ,Cell Biology ,Atherosclerosis ,Lipoproteins, LDL ,Oxidative Stress ,030104 developmental biology ,Mechanism of action ,030220 oncology & carcinogenesis ,biology.protein ,medicine.symptom - Abstract
Atherosclerosis is a chronic disease of arteries, which constitutes the pathological basis of a series of cardiovascular diseases. The inflammatory response of vascular endothelial cells mediated by oxidized low density lipoprotein (ox-LDL) is the early behavior and main signal of atherosclerosis. In this study, the damage model of vascular endothelial cells treated with ox-LDL was used to reproduce the damage process of vascular endothelial cells in the process of atherosclerosis. Cell viability was detected by CCK-8. The release levels of reactive oxygen species, nitric oxide, and superoxide dismutase (SOD) were detected by commercial kits. EdU cell proliferation assay was used to detect cell proliferation, real-time fluorescent quantitative PCR and Western blot were used to detect the expression level of related genes. The results showed we successfully constructed a vascular endothelial injury model by incubating vascular endothelial cells with gradient concentrations of ox-LDL. The incubation of safflor yellow A (SYA) partially restored the loss of viability of vascular endothelial cells mediated by ox-LDL, and SYA could promote the proliferation of injured vascular endothelial cells. In addition, SYA may transmit related signals through the AMPK pathway to protect vascular endothelial cells from ox-LDL-mediated damage. All these results provide a further understanding of the occurrence and development of atherosclerosis, provide a theoretical basis for the use of SYA-related drugs in the treatment of cardiovascular diseases, and provide a reference paradigm for studying the pharmacology, toxicology, and mechanism of action of key active substances in TCM.
- Published
- 2020
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